Continuous Integration

[jakirkham]

• Need automated test suite for the Raspberry Pi.
  • Assume there is a camera, but mock out interaction.
• Provide mocked tests for camera and allow PiCamera tests to skip.
• Setup continuous integration.

[bnhwa]

are there any programs in particular that you would recommend to to test my program?

[jakirkham]

Probably, would use nose.

[jakirkham]

I think the first task on the list is basically doable if we assume there is a camera to work with. It would just run help for each program and the run each program explicitly.

• Preview for 1 second.
• Capture a picture and make sure it saved.
• Interaction based one would require mocking* for the interaction** ***.

The next two tasks should be tabled for now as they require more work (namely mocking).

* - This is how one might mock it out ( http://stackoverflow.com/questions/28762993/how-to-unittest-gpio-output-value-of-raspberry-pi-in-python ).
** - Turns out you set the output value on a port ( http://sourceforge.net/p/raspberry-gpio-python/wiki/Outputs ).
*** - More examples ( http://raspi.tv/2013/rpi-gpio-basics-4-setting-up-rpi-gpio-numbering-systems-and-inputs ) ( http://raspi.tv/2013/rpi-gpio-basics-5-setting-up-and-using-outputs-with-rpi-gpio ).

[jakirkham]

Worth looking at how tests are done with picamera ( https://github.com/waveform80/picamera/tree/master/tests ) and RPi.GPIO ( http://sourceforge.net/p/raspberry-gpio-python/code/ci/default/tree/test ).

[jakirkham]

As for a VM, it would be best to use QEMU. A kernel exists for the Raspberry Pi using QEMU ( https://github.com/dhruvvyas90/qemu-rpi-kernel ). However, it would be good if we were able to reproduce it from source. Here's a way of getting started ( http://paulscott.co.za/blog/full-raspberry-pi-raspbian-emulation-with-qemu ). Here's some thoughts on getting this into Travis CI ( http://www.tomaz.me/2013/12/02/running-travis-ci-tests-on-arm.html ).

[jakirkham]

Now have automated test suite that runs on the Raspberry Pi. Will table the rest of these tasks for later.